Developer David Szymanski writes on Twitter, "What the fuck." According to Variety, Iron Lung nearly tripled Markiplier's self-funded $3 million budget in one night, earning $8.9 million on January 30. The horror movie has since gone on to massacre the rest of its competition, amassing $17.8 million in the US over the weekend and $21.7 million worldwide. Its domestic box office ranking – Iron Lung sits leisurely in second place – is only rivaled by Sam Raimi's desert island showdown Send Help, which has so far amassed $28.1 million globally. Markiplier's Iron Lung scores impressive $17.8 million US opening weekend, but it was beaten to the top by Send Help Return to Silent Hill is a disaster, and proof that Hollywood still hasn't figured out how to adapt horror video games Return to Silent Hill is an early contender for 2026's worst movie – with a 6% Rotten Tomatoes score Someone on Twitter asks Szymanski how it feels for Iron Lung to rank so highly, and he responds, "Dreamlike." Indeed, I would have never imagined Szymanski's hour-long, $8 game about commanding a submarine through an ocean of blood could have ever turned into a two-hours-long, multimillion-dollar film with its own commemorative bloody popcorn bucket. But now that there are so many megacorporations putting both indie games and movie theaters at risk, I'm glad it did. A Return to Silent Hill director's cut exists and would allow the horror movie "room to breathe," says director of the 20% Rotten Tomatoes flop. Bringing all the latest movie news, features, and reviews to your inbox